<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>布局</title>
    <style>
        * {
            box-sizing: border-box;
        }
        body {
            margin: 0;
        }
        .header {
            background-color: #2196F3;
            color: white;
            text-align: center;
            padding: 15px;
        }
        .footer {
            background-color: #444;
            color: white;
            padding: 15px;
        }
        .topmenu {
            list-style-type: none;
            margin: 0;
            padding: 0;
            overflow: hidden;
            background-color: #777;
        }
        .topmenu li {
            float: left;
        }
        .topmenu li a {
            display: inline-block;
            color: white;
            text-align: center;
            padding: 16px;
            text-decoration: none;
        }
        .topmenu li a:hover {
            background-color: #222;
        }
        .topmenu li a.active {
            color: white;
            background-color: #4CAF50;
        }
        .column {
            float: left;
            padding: 15px;
        }
        .clearfix::after {
            content: "";
            clear: both;
            display: table;
        }
        .sidemenu {
            width: 25%;
        }
        .content {
            width: 75%;
        }
        .sidemenu ul {
            list-style-type: none;
            margin: 0;
            padding: 0;
        }
        .sidemenu li a {
            margin-bottom: 4px;
            display: block;
            padding: 8px;
            background-color: #eee;
            text-decoration: none;
            color: #666;
        }
        .sidemenu li a:hover {
            background-color: #555;
            color: white;
        }
        .sidemenu li a.active {
            background-color: #008CBA;
            color: white;
        }
    </style>
</head>
<body>
    <ul class="topmenu">
        <li><a href="#home" class="active">主页</a></li>
        <li><a href="#news">新闻</a></li>
        <li><a href="#contact">联系我们</a></li>
        <li><a href="#about">关于我们</a></li>
    </ul>
    <div class="clearfix">
        <div class="column sidemenu">
            <ul>
                <li><a href="#flight">The Flight</a></li>
                <li><a href="#city" class="active">The City</a></li>
                <li><a href="#island">The Island</a></li>
                <li><a href="#food">The Food</a></li>
                <li><a href="#people">The People</a></li>
                <li><a href="#history">The History</a></li>
                <li><a href="#oceans">The Oceans</a></li>
            </ul>
        </div>

        <div class="column content">
            <div class="header">
                <h1>The City</h1>
            </div>
            <h1>Chania</h1>
            <p>Chania is the capital of the Chania region on the island of Crete. The city can be divided in two parts, the old town and the modern city.</p>
            <p>You will learn more about responsive web pages in a later chapter.</p>
        </div>
    </div>
    <div class="footer">
        <p>底部文本</p>
    </div>

</body>
</html>